Whiffletree-coupling



(Model.)

P.- A. HAVENS.

, WHIFFLETREE COUPLNG. No. 262,540. Patented Aug. 8, 1882.

UNITED STATES ATENT Il FFICE.

FRED A. HAVENS, OF WETHERSFIELD, CONNECTICUT.

SPECIFICATION rforming part of Letters Patent No. 262,540, dated August 8, 1882.

Application filed April 3, 1882. (Model.)

To all whom .it may concern:

Be it known that I, FRED A. HAvENs, of Wethersfield, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Whiffletree- Couplings; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

My invention relates to an improvement in couplings for whftletrees; and it consists in the combination of two parts or castings which have suitable shoulders or stops formed upon them to limit the movement of the whiflietree and suitable flanges so formed as to constitute a clutch for holding the two parts together, and which parts are pivoted together by means of a central bolt, as willbe more fully described hereinafter.

Figure l is a front elevation of my coupling. Fig. 2 is a side elevation of the same, the two trees being cut away. Fig. 3 is a detailed view ofthe two parts of the coupling. Fig. 4 is a vertical section of the same. Fig. 5 is a plan view of the two parts of the coupling by themselves.

A represents a double-tree, and B the whifiietree. Upon the top of the double-tree is bolted the lower part, I, of the coupling, which has the two shoulders E formed upon opposite sides, so as to regulate the distance the upper part of the coupling shall turn. This part of the coupling is secured in posit-ion upon the single-tree by means of the two lugs F, through which suitable clampingbolts are passed, and by means ofthe extension G, which extends down over the side of the double-tree, and through which is passed the boltH. Upon the top of this part of the coupling, extending from one shoulder or stop to the other, is a an ge, I', under which a corresponding flange, J, on the other part, L, ofthe coupling catches. This part L ofthe'coupling is secured to the under side of the single-tree by means of suitable lugs, N, through which suitable clampingbolts are passed. This part L consists of atlat plate, which rises upon the lower part of the coupling, and which has simply the iange J formed on one side, so as to catch on the corresponding iiange, l. The ends of this flange J as the whiflletree is turned strike against the shoulders or stops formed on the lower part of the coupling, and thus prevent the whffletree from turning too far around. These two parts of the coupling are pivoted together-by means of a pivotal bolt, P, which passes through their centers and holds them securely together, while it allows them to turn freely upon each other as far as the shoulders or stops will allow.

Having thus described my invention, I claim- A coupling for whiffietrees, composed of the casting I, having the flange I extending partially around its upper edge, the lugs F, extension G, and stops E, the casting L, having the flange J on one side, and lugs N, in coinbination with the pivot-al bolt l? and bolt H, substantially as shown and described.

In testimony whereof I affix my signature in presence of -two witnesses.

FRED A. HAVENS. 

